Hi, A chap bought back a Rover "Professional 50" I'd sold him some time ago. It has a 5.5HP intek engine with OHV's. He couldn't get it to start and neither could I. However, it would start and run happily if I squirted some petrol into the carburettor or if I blocked the carburettor air intake with a rag but no luck otherwise. I've cleaned the carburettor twice and now it will kick and backfire back out through the carburettor. Pull start action is smooth so I don't think there is any timing problem there and it runs well if you start it with a prime. I was thinking it might be a valve but I still have doubts about the carburettor. The engine markings are 124602-0111-01-050823-FA. Is the consensus valves or carburettor fault.
